| CPC G06F 3/04166 (2019.05) [G06F 3/044 (2013.01); G06F 2203/04104 (2013.01)] | 24 Claims |
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1. An object capacitance detection apparatus comprising:
a first area Capacitor Detect Area (CDA) configured to locate on one side of a display device and connected at one side to one side of a first CDA signal line, wherein other side of the first area CDA is not connected to other signal line, and the first area CDA is peeled off by an empty area based on a first ratio;
a first CDA column comprising a plurality of first area CDAs stacked together;
a plurality of first CDA signal lines contained within the first CDA column and arranged in the same direction, wherein each of the plurality of first CDA signal lines within the first CDA column is not connected to other signal line;
a second area CDA, wherein the second area CDA is connected at one side to one side of a second CDA signal line and peeled off by an empty area based on a second ratio, wherein other side of the second area CDA is not connected to other signal line;
a second CDA column comprising a plurality of second area CDAs stacked together;
a plurality of second CDA signal lines contained within the second CDA column and arranged in the same direction as the plurality of first CDA signal lines, wherein each of the plurality of second CDA signal lines within the second CDA column is not connected to other signal line;
a third area CDA, connected at one side to one side of a third CDA signal line, and peeled off by an empty area based on a third ratio, wherein other side of the third area CDA is not connected to other signal line;
a third CDA column comprising one or a plurality of third area CDAs, located on the same layer as the first CDA column and the second CDA column; and
one or a plurality of third CDA signal lines included in the third CDA column, arranged in the same direction as the plurality of first CDA signal lines, wherein each of the plurality of third CDA signal lines within the third CDA column is not connected to any other signal line;
wherein the number of CDA signal lines increases proportionally with the increasing number of CDAs from a far distance to a near distance, and the area of the CDAs gradually decreases with the increasing number of CDAs from a far distance to a near distance in both the first CDA column and the second CDA column, the second CDA column is located adjacent to the first CDA column, and when an nth CDA signal line is selected as a sensing signal line from either the first CDA column or the second CDA column, either (n−1) or (n+1), or both (n−1) and (n+1) CDA signal lines in the same CDA column are selected as driving signal lines, and by applying a driving voltage to the selected driving signal lines, an object capacitance added to the Detection CDA connected to the sensing signal line is detected, and
wherein the third area CDA is of a different area size than the first area CDA and the second area CDA, and the third area CDA is placed adjacent to either or both of the first CDA column and the second CDA column.
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